AM_Armstrongite
Formula:
Ca Zr Si6 O17 H4
Name:
Armstrongite
Unit cell:
14.04 14.16 7.81 90.0 109.55 90.0 , V=1463.17
Space group:
C121 (5)
Kashaev A A , Sapozhnikov A N , Kristallografiya , 23 (1978) p.956-961, Crystal structure of armstrongite